[vlc-devel] [PATCH 1/2] access: file: remote FS can't FAST_SEEK

Thomas Guillem thomas at gllm.fr
Tue Apr 16 17:52:00 CEST 2019

On Tue, Apr 16, 2019, at 17:40, Rémi Denis-Courmont wrote:
> Le tiistaina 16. huhtikuuta 2019, 14.30.39 EEST Thomas Guillem a écrit :
> > Reminder: FAST_SEEK set to false will trigger remote tweaks like the stream
> > prefetcher.
> I wrote the prefetcher and I disagree. If you mount a file system, there is a 
> reasonable expectation that it works like a local filesystem - meaning that it 
> is fast. The prefetch caching is not designed and suited for that case.

VLC was always unable to play any remote media via a fuse mount. Every other players can.
At my home, I'm not even able to play a 720p file via WIFI without this patch. Yes,  I have a normal (crappy) WIFI router, like most people (Router from our FAI).

I can speak for Debian stable/testing with gnome: mounted file systems don't work like a local one: it is very slow.

> But the worst is that this change breaks ASF and AVI demuxers.

How ? Such formats are playable remotely.

> The applies to network FS, and to userspace FS.
> -- 
> 雷米‧德尼-库尔蒙
> http://www.remlab.net/
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